[Zope] ZClass authorization problem (You are not authorized to access manage_changeProperties)

I have created a new ZClass which contains a dtml method that first clones an object and then edits it's properties: When I fill out the 'add' form and try to create a new instance I am presented with the error message (as a user with a manager role): You are not authoriz

[Zope] Newbe external method question

I have what I fear is a very basic question ... I want to write an external method that first determines all of the objects in a folder that posses a certain property. I know how to find the object ids but once I do that how do I then determine which contain the property I am searching for?? Th

[Zope] Adding an XMLDocument instance Programmatically

I am trying to write a python method which will programmatically create an instance of an (existing) XML document. (I am using Zope2.1.6 and XMLDocument 1.0a6) I am able to add an XML document by selecting the XMLDocument from the available objects ... so XMLDocument is installed correctly. Ess

[Zope] Newbe question concerning using python classes and external methods

All, I am a new Zope user and I guess I'm missing something fundemental that I haven't been able to glean from the documentation and various "How-to's". As a learning tool I am trying to implement one of Brian Lloyd's examples I found on the Web implementing a GuestBook. I suspect what I don't